* Qualifies for LEED (Leadership in Energy and Environmental Design) * points under U.S Green Building Council (USGBC) certified. * Can be used as underlayment sound barrier under wood, laminate, * vinyl tiles, porcelain and marble Tile. * Collaborative for high-performance schools (CHPS) certified and passes CA 01350 specification criteria. * Compliant with CALGreen’s acoustical control standards. * Helps conserve energy * Made from recycled tires* Fully recyclable at end of life * Very low volatile organic compounds (VOCs) Thickness: Available in 3mm, 5mm, 6mm, 9mm, 10mm, 12mm thickness. Custom order up to 17mmWeight: 1- 9mm = 1.5 lbs per sq. ft. 2- based on 9mm thicknessMoisture: Resistant to moisture, mold and mildew.Odor: Extremely low VOC product.Composition: 100% Recycled Rubber Compression: 100PSI ~30% based on 9mm thicknessShore Hardness: Shore A ASTM D-2240 - 40 Durometer